Coin operated lock



Aug. 30, 1966 J. A. SMITH ETAL 3,269,597

COIN OPERATED LOCK Filed March 5, 19 64 2 Sheets-Sheet 1 a :21 INVENTORS W TTORNEYS Aug. 30, 1966 J. A. SMITH ETAL COIN OPERATED LOCK 2 Sheets-Sheet 2 Filed March 5, 1964 FIG.6

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INVENTORS J. AUSTIN SMITH M United States Patent 3,269,507 CGIN OPERATED LOCK Joseph A. mith, Loudonville, Ohio, and Richard H. Jordan, Fort Myers, Fla, assignors to Sentinel Frechek Locks, Incorporated, a corporation of Illinois Filed Mar. 3, 1964, Ser. No. 348,944 12 Claims. ((11. 19459) The invention relates in general to coin operated locks and, more particularly, to coin and key operated locks which may be used in lockable doors.

The invention may be incorporated in a coin operated lock mechanism wherein a lock bolt is movable in a lock case between first and second positions with means connected to move the lock bolt through first and second consecutive ranges of movement, surfaces defining a coin chute in said lock bolt, a latch shoulder on said lock bolt, means urging a cam abutment toward a position in the path of movement of the latch shoulder to prevent movement of said lock bolt beyond said first range of movement, movement of said lock bolt through said first range of movement with a coin in said coin chute moving said coin between said cam abutment and surface means to thus cam said cam abutment to an unl-atched position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement.

An object of the invention is to provide a coin and key operated lock mechanism wherein the coin may be re turned after one complete cycle of operation of the lock.

Another object of the invention is to provide a coin operated lock mechanism having a spring urged latch preventing movement of a lock bolt until a coin is used in the lock.

Another object of the invention is to provide a coin and key operated lock mechanism wherein a cam abutment cooperates with a coin to permit release of the latch and thus permit movement of a lock bolt.

Another object of the invention is to provide a coin operated lock mechanism which may be readily changed to accommodate difierent size coins or tokens for operation of the lock.

Another object of the invention is to provide a lock mechanism operated by a coin and key wherein the mechanism may be readily converted from a coin return mech. anism providing free service to a coin retained mechamsm.

Another object of the invention is to provide a coin and key operated lock mechanism wherein the fact of coin operation is concealed from view from the front of the door in which the mechanism is mounted.

Other objects and a fuller understanding of the invention may be had by referring to the following description and claims, taken in conjunction with the accompanying drawings, in which:

FIGURE 1 is a front view of a lock mechanism embodying the invention and with the cover removed to better show the mechanism;

FIGURE 2 is a sectional view on line 2-2 of FIG- URE 1;

FIGURE 3 is a sectional view on line 3-3 of FIG- URE l and with an optional coin retainer in place;

FIGURE 4 is a top view of the lock mechanism;

FIGURE 5 is a front view similar to FIGURE 1 showing a coin in place and the lock partially actuated;

FIGURE 6 is a front view similar to FIGURE 1 but with the lock bolt extended;

FIGURE 7 is a partial front view with a coin insert in place for a smaller size coin; and

FIGURE 8 is a sectional view on line 8-8 of FIG- URE 7.

3,269,507 Patented August 30, 1966 The figures of the drawing show a coin operated lock 11 which is one embodiment of the invention. This lock 11 may have several uses and one such use may be with coin operated lockable doors such as a locker 12 having a door 13. The door cooperates with a door frame 14.

The lock 11 includes a case 18 which may be made of metal such as formed sheet metal. The case 18 has an upper wall 19. A rear wall 20, a side wall 21 and mounting ears 22 to provide a mounting of the lock case 18 to the inside of the door 13. The mounting ears contain a nut cap 23 fixed thereto, each containing a rotatable nut 24. A stud 25 is riveted to the door 113 and has male threads engaging the nut 24. The nut 24 also has a hex socket '26 to permit rotation of the nut by a hexagonal key inserted through an aperture 27 in the nut cap 23. A lock cover 28 may be fixed to the front of the lock case 18 to cover the internal mechanism.

A lock bolt 31 is movable in the lock case 18 and is shown as being reciprocable between first and second positions. The first position is the retracted position shown in FIGURE 1 and the second position is the extended position shown in FIGURE 6. A barrel 32 has legs 33 extending into a sub-frame 34 fixed to the case 18. This fixes the barrel 32 relative to the case 18. A key cylinder 35 is rotatable within the barrel 32 by a key 36 insertable in the cylinder. A crank arm 37 is fixed on the rear of the key cylinder 35 and has a slotted aperture 38 engaging a pin 39 carried on the lock bolt 3-1. Arcuate movement of the key cylinder 35, in this embodiment about a 45 degree arcuate movement, is capable of moving the lock bolt 31 through first and second consecutive ranges of movement between the first and second positions thereof. In the second or extended position, the lock bolt 31 may extend into an aperture 40 in the door frame 14, or may otherwise engage an abutment on the door frame to lock the door 13.

A first coin chute 41 is defined by surfaces in the lock bolt 31. A second coin receiving chute 42 is defined by a slotted aperture in the upper wall 19 of the case 18. The first and second coin chutes are in alignment with the lock bolt in the first or retracted position and these two coin chutes are misaligned upon the lock bolt being in the second or extended position.

A cantilever spring arm 43 is fixed at one end to the sub-frame 34. An abutment 44 is carried on the outer end Otf this spring arm 43 and this abutment 44 includes an angled cam abut-ment 45 and a latch abutment 46. The lock bolt 31 has a sloping surface 49 positioned for cooperation with the angled cam abutment 45. Also, a latch shoulder 50 is provided in the lock bolt 31 for cooperation with the latch abutment 46. The mounting of the spring arm 43 urges the cam abutment 45 upwardly in the first coin chute 41 and urges the latch abutment 46 upwardly to an engagement position. The engagement position of this latch abutment 46 is in the path of movement of the latch shoulder 50 of the lock bolt 31 in movement from the retracted to the extended position thereof. This prevents extension of the lock bolt 31 beyond a first range of movement. The first range of movement is that between the position of the parts in FIGURE 1 and a position whereat the lock bolt 31 is partially extended so that the latch abutment 46 engages the latch shoulder 50. If the latch abutment 46 is moved downwardly out of the path of the latch shoulder 50, then the lock bolt 31 may move through a second range of movement consecutive with the first range of movement to permit the lock bolt 31 to be moved to the extended position.

A coil compression spring 52 is disposed between a stud 53 on the lock bolt 31 and a stud 54 on the underside 55 of the upper wall 19 of the case 18. A coin receptacle 57 is connected to the bottom of the case 18 and is shown as being made a part of this case 18. A slotted 3 aperture 58 is provided in a lower wall of the sub-frame 34 and is in alignment with the second coin chute 42 and also in alignment with the first coin chute 41 when the lock bolt 31 is in the retracted position. This slotted aperture 58 leads from the first coin chute 41 into the coin receptacle 57. A finger aperture 59 is provided in the rear wall of the case 18 to provide access to the coin receptacle 57 and thus this coin receptacle 57 is a coin return receptacle. As shown in FIGURE 3, a coin retainer 61 optionally may be provided in order to retain coins in the coin receptacle 57 to transform it into a coin retained receptacle. This coin retainer includes a Wall 62 filling the finger aperture 59 and includes another Wall 63 in the plane of the cover 28. These two walls 62 and 63 may be fastened together as by spot welding and may be slidably disposed in a recess 64 in the lower mounting car 22. The walls 62 and 63 have an aperture 65 surrounding the stud so that this coin retainer 61 may be removed or replaced when the lock 11 is removed from the riveted studs 25 on the door 13.

Operation FIGURES 1-4 show the lock 11 without a coin in place in the first coin chute 41. In this condition the lock may not be actuated, in other words, the lock bolt may not be moved from its first or retracted position to its second or extended position. The key 36 and key cylinder may be rotated only slightly to move the lock bolt 31 through a first range of movement which will move the lock bolt from the spring urged position shown in FIG- URE 1 to a position to the right thereof whereat the latch shoulder 50 on lock bolt 31 engages the latch abutment 46. FIGURE 5 shows a coin 68 in place in the first coin chute 41 and it may be dropped into this coin chute through the sec-0nd coin receiving chute 42. Only the key 36 and front of the key cylinder 35 is visible from the front of the locker 12. And, hence, the fact of coin operation of the lock is concealed from view of the front of the locker. This minimizes temptation to vandalism of the lock and locker. Accordingly, a person desiring to use the locker for storage of articles may grasp the key 36 to pull the door 13 open. The key cylinder 35 is so constructed that the key 36 is retained in the key cylinder except 'when the key cylinder has been turned to the lock bolt extended position as shown in FIGURE 6. Thus, pulling on the key with the key cylinder 35 in the position shown in FIGURE 1 will exert a force to open the door 13. With the door open, one can read the instructions to see that a certain denomination coin, e.g. a quarter, is required to operate the lock. With this proper denomination of coin 68 deposited in the first coin chute 41, it will rest on the abutment 44. Next, as the key cylinder 35 is rotated clockwise, the lock bolt 31 will be moved to the right through the first range of movement. During this movement, the lower edge of the coin 68 will be moved laterally against the angled cam abutment 45. The stiffness of the spring arm 43 lifts the coin 68 to engage the underside 55 of the upper Wall 19 of the case 18. After the coin has been cammed upwardly into engagement with the surface 55, it can move upwardly no farther and thus continued extensile movement of the lock bolt 31 will cam the cam abutment 45 downwardly. It will cam downwardly to the position shown in FIGURE 5 which is far enough to move the latch abutment 46 out of the path of movement of the latch shoulder 50. Accordingly, the lock bolt 31 may be moved not only through its first range of movement but also consecutively through the second range of movement. This second range of movement moves the lock bolt outwardly enough so that the coin 68 is moved laterally beyond the end of the abutment 44. It thereupon falls downwardly within the first coin chute 41 to have the lower edge thereof rest on the bottom wall 56 of the sub-frame 34, which is a part of the case 18. The coin is retained within the lower part of the first coin chute 41. Continued clockwise movement of the key cylinder 35 moves the lock bolt completely to the extended position. This moves the spring 52 past its over-center position to the position shown in FIGURE 6. Thus, the spring 52 now urges the lock bolt 31 outwardly rather than urging it inward-1y as in the position of FIGURE 1.

In the extended position of the lock bolt 31 the key 36 may be removed and locker 12 is locked. The operator may then retain the key in order to later regain his possessions. Upon the operator returning to the locker 12, the key may be inserted in the lock and rotated counterclockwise to the initial position shown in FIGURE 1.

. This counterclockwise movement moves the lock bolt 31 to the retracted position which moves the coin 68 laterally back to the left. When the first coin chute 41 is aligned with the second coin chute 42 and the slotted aperture 58, the coin will drop into the coin receptacle 57. Since the door 13 is now unlocked, the operator may open the door by pulling on the key 36 and regain possession of his articles. Also, the operator may reach inside the finger aperture 59 to obtain his coin. The coin thus served as a deposit insuring safe return of the key 36 yet the combined key and coin operated lock 11 provides free service of the lock 11 and in this illustrated embodiment, would provide free service of checking in the locker 12.

In those cases where the coin retainer 61 is inserted in place as shown in FIGURE 3, the entire lock 11 is changed to one retaining the coins to make a charge for use of the locker 12.

In FIGURE 1 it will be noticed that the latch abutment 46 is laterally spaced from the latch shoulder 50. This is purposely made so that the lock bolt 31 must be extended partially through the first range of movement before engagement between latch abutment 46 and latch shoulder 50. At this engaged position, the first and second coin chutes 41 and 42 are entirely out of alignment. This is to prevent unauthorized operation of the lock without a coin such as might be attempted by a thin blade inserted through the second coin chute 42 to depress the abutment 44. Such depression may occur, but since the first coin chute 41 moves out of alignment with the second coin chute 42 .upon attempted extension of the lock bolt 31, such blade would have to be withdrawn from the second coin chute 42 before the latch shoulder 50 reached the position for engagement with the latch abutment 46.

The second coin chute 42 is of a size just large enough to receive the coin of the selected denomination. If a smaller coin is attempted to be used, then as the lock bolt 31 is extended, this smaller coin will ride up over the angle cam abutment 45 and will drop down through the first coint chute 41 and into the coin receptacle 57 without ever engaging the underside 55 of the upper wall 19 of the case and thus such smaller coin will not cam the latch abutment 46 downwardly. Thus, a smaller coin will not operate the lock mechanism 11.

FIGURES 7 and 8 are partial views similar to FIG- URES 1 and 2 but showing a coin insert 71. This coin insert has a mounting flange 72 which may be fixed to the undersurface 55 of the upper wall 19 by a screw 73. Access to this screw 73 may be provided through tool apertures 74 in the case 18. The coin insert 71 also includes a top finger 79 and first and second depending fingers 75 and 76. This coin insert 71 may be used to change the lock 11 for operation with a coin of smaller diameter, for example a dime instead of a quarter. By suitable dimensioning, the coin insert 71 may be used with other coins of smaller diameter or tokens of any diameter up to the largest which may be accommodated Within the case 18. The second finger 76 positions a smaller coin 77 such as a dime-toward the cover 28 of the lock case 18. This is shown in phantom in FIGURE 8. The first finger 75 provides a fixed lower surface means 78 fixed relative to the upper fall 19. The end of the first finger 75 terminates just short of the second coin receiving chute 42. The top finger 79 partially closes the coin chute 42 so that coins larger than the selected denomination cannot be inserted. Thus, when a dime 77 is inserted in the second coin chute 42, it is directed by the second finger 76 to engage the edge of coin chute 41 as well as the abutment 44. As the key 36 is rotated clockwise, as viewed in FIGURE 1, the dime '77 is moved laterally and is cammed between the cam abutment 45 and the lower surface 78 of finger 75 to thus cam the latch abutment 46 downwardly out of the path of movement of the latch shoulder 50. The operation is thus the same as that described above, namely, the coin 77 will drop to the bottom of the first coin chute 41 as the lock bolt 31 is extended. Upon subsequent retractile movement of the lock bolt 31, the coin 77 drops into the coinreceptacle 57 through the slotted aperture 58. The coin retainer 61 may be used with the smaller coin 77 as well as with the larger coin 68. When the coin retainer 61 is used, this provides a coin retained lock for charging a fee for use of the locker 12.

In FIGURES 1-4, the undersurface 55 of the upper wall 19 is the fixed surface rneans fixed relative to the case 18 which coacts with the coin 68 as it is moved laterally to cam the abutment 46 out of the path of the latch shoulder 50. The crank arm 37 is a means connected between the key cylinder 35 and lock bolt 31 to move this lock bolt upon arcuate movement of the key cylinder 35.

The lock 11 is shown as being mounted on the door 13 but it can be mounted in the door frame 14 to have the lock bolt 31 move outwardly to engage the door 13.

The lock 11 is shown as requiring a coin in order to extend the lock bolt 31. The lock 11 may be provided as a lock requiring a coin to unlock or retract the lock bolt simply by having the lock bolt 31 extend out through the left side of the case 18 as viewed in FIGURE 1 instead of extending through the right side of this case 18. In either case, the coin controls the operation of the lock and permits movement of the lock bolt from the first position shown in FIGURE 1 to a second position.

Although this invention has been described in its preferred form with a certain degree of particularity, it is understood that the present disclosure of the preferred form has been made only by way of example and that numerous changes in the details of construction and the combination and arrangement of parts may be resorted to without departing from the spirit .and the scope of the invention as hereinafter claimed.

What is claimed is:

1. A coin operated lock mechanism comprising in combination, a lock case,

a lock bolt movable in said lock case between first and second positions,

means connected to move said lock bolt through first and second consecutive ranges of movement, surfaces defining a coin chute in said lock bolt,

a latch shoulder on said lock bolt,

a cam abutment,

means urging said cam abutment toward a position in said coin chute above the bottom thereof and in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

surface means carried relative to said case,

movement of said lock bolt through said first range of movement with a coin in said coin chute supported on said abutment above the bottom of said coin chute moving said coin between said cam abutment and said surface means to thus cam said cam abutment to an unlatched position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement and to move said coin out of engagement with said cam abutment to have same moved to another position still within said coin chute and moved therewith.

2. A coin operated lock mechanism comprising in combination, a lock case,

a lock bolt movable in said lock case between first and second positions,

means connected to move said lock bolt through first and second consecutive ranges of movement,

surfaces defining a coin chute in said lock bolt,

a latch shoulder on said lock bolt,

a cam abutment,

means urging said cam abutment toward a position in said coin chute and in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

surface means carried relative to said case,

movement of said lock bolt through said first range of movement with a coin in said coin chute supported on said abutment above the bottom of said coin chute moving said coin between said cam abutment and said surface means to thus cam. said cam abutment to an unlatched position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement to said second position,

said second range of movement of said lock bolt to the second position carrying said coin to a position beyond said abutment to cause said coin to move to the bottom of said coin chute to engage second surface means in said case,

a coin receptacle connected tosaid case,

and subsequent movement of said lock bolt to said first position returning said coin chute into alignment with said coin receptacle to move the coin beyond said second surface means and into said coin receptacle.

3. A coin opera-ted lock mechanism comprising in combination, a lock case,

a lock bolt movable in said lock case between first and second positions,

means connected to move said lock bolt through first and second consecutive ranges of movement,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a spring arm carried on said case,

an abutment carried on said spring arm,

a latch shoulder on said lock bolt,

the mounting of said spring arm establishing said abutment in a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

surface means carried relative to said case,

movement of said lock bolt through said first range of movement with a coin in said first coin chute supported on said abutment above the bottom of said first coin chute moving said coin between said abutment and said surface means to thus move said abut ment to an unlatched position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

second surface means in said case,

and said second range of movement of said lock bolt to the second position carrying said coin beyond said abutment to a position to cause said coin to move to the bottom of said first coin chute to engage said second surface means and be retained in said first coin chute.

4. A coin operated lock mechanism comprising in combination, a lock case,

a lock bolt movable in said lock case between first and second positions,

means connected to move said lock bolt through first and second consecutive ranges of movement,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a spring carried on said case,

a latch abutment and an angled cam abutment carried on said spring and urged toward a position in said first coin chute,

a latch shoulder on said lock bolt,

the mounting of said spring establishing said latch abutment in a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

surface means carried relative to said case,

movement of said lock bolt through said first range of movement with a coin in said first coin chute supported on said cam abutment above the bottom of said first coin chute moving said coin laterally to have an edge of said coin move between said angled cam abutment and said surf-ace means to thus cam said latch abutment to an unlatched position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

and said second range of movement of said lock bolt to the second position carrying said coin laterally to a position beyond said abutment to cause said coin to move to the bottom of said first coin chute to engage second surface means and be retained in said first coin chute.

5. A lock mechanism for a door and a door frame,

comprising in combination,

a lock case mountable on one of said door and door frame,

a lock bolt movable in said lock case between first and second positions with one being an extended position engaging the other of said door and door frame,

a key cylinder rotatable relative to said case by a key insertable in said cylinder,

means connected between said key cylinder and said lock bolt to move said lock bolt through first and second consecutive ranges of movement upon arcuate movement of said key cylinder,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a latch shoulder on said lock bolt,

a cam abutment,

means urging said cam abutment toward a position in said first coin chute and in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

surface means carried relative to said case,

arcuate movement of said key cylinder with a coin in said first coin chute supported on said abutment above the bottom of said first coin chute moving said lock bolt through said first range of movement and moving said coin between said cam abutment and said surface means to thus cam said cam abutment to an unlatched position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

said second range of movement moving said lock bolt to the second position and carrying said coin to a position beyond said abutment to cause said coin to move to the bottom of said first coin chute to engage second surface means in said case,

a coin receptacle connected to said case and aligned beneath said second coin chute,

and subsequent movement of said lock bolt to said first position returning said first coin chute intoalignment with said second coin chute and carrying said coin in the opposite direction beyond an edge of said second surface means to move the coin into said coin receptacle.

6. -A coin and key operated lock mechanism for a door and a door frame, comprising in combination,

a lock case mountable on one of said door and door frame,

a lock bolt movable in said lock case between first and second positions with one being an extended position engaging the other of said door and door frame,

a key cylinder rotatable relative to said case by a key insertable in said cylinder,

crank means connected between said key cylinder and said lock bolt to move said lock bolt through first and second consecutive ranges of movement upon arcuate movement of said key cylinder,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a latch shoulder on said lock bolt,

a latch abutment and an angled cam abutment fixed together,

means urging said latch abutment to a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement and urging said cam abutment to a position in said first coin chute above the bottom thereof,

fixed surface means fixed relative to said case,

arcuate movement of said key cylinder with a coin in said first coin chute supported on said cam abutment above the bot-tom of said first coin chute moving said lock bolt through said first range of movement and moving said coin between said angled cam abutment and said fixed surface means to thus cam said latch abutment to an unlatched position,

and said unlatched position of said latch abutment moving said latch abutment to a position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement to carry the coin beyond said abutment to have the coin drop to the bottom of said first coin chute.

7. A coin and key operated lock mechanism for a door and a door frame, comprising in combination,

a lock case mountable on one of said door and door frame,

.a lock bolt movable in said lock case between first and second positions with one being an extended position engaging the other of said door and door frame,

a key cylinder rotatable relative to said case by a key insertable in said cylinder,

crank means connected between said key cylinder and said lock bolt to move said lock bolt through first and second consecutive ranges of movement upon arcuate movement of said key cylinder,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a spring arm fixed on said case,

a latch abutment and an angled cam abutment carried on said spring arm and movable relative to said case and disposed in said first coin chute above the bottom thereof to have a coin in said first coin chute engageable with the top of said cam abutment,

a latch shoulder on said lock bolt,

the mounting of said spring arm establishing said latch abutment in a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

fixed surface means fixed relative to said case,

- arcuate movement of said key cylinder with a coin resting on and engaging said cam abutment in said first coin chute moving said lock bolt through said first range of movement and moving said coin between said angled cam abutment and said fixed surface means to thus cam said spring arm to an unlatched position,

said unlatched position of said spring arm moving said latch abutment to a position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

said second range of movement moving said lock bolt to the second position and carrying said coin to a position beyond said cam abutment to permit said coin to fall by gravity within said first coin chute.

8. A coin return, coin and key operated lock mechanism for a door and a door frame, comprising in combination,

a lock case mountable on one of said door and door frame,

a lock bolt movable in said lock case between first and second positions with one being an extended position engaging the other of said door and door frame,

a key cylinder rotatable relative to said case by a key insertable in said cylinder,

crank means connected between said key cylinder and said lock bolt to move said lock bolt through first and second consecutive ranges of movement upon arcuate movement of said key cylinder,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a spring arm fixed on said case,

a latch abutment and an angled cam abutment carried on said spring arm and movable relative to said case and disposed in said first coin chute above the bottom thereof,

a latch shoulder on said lock bolt,

the mounting of said spring arm establishing said latch abutment in a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

fixed surface means fixed relative to said case,

arcuate movement of said key cylinder with a coin engaging said cam abutment in said first coin chute moving said lock bolt through said first' range of movement and moving said coin between said angled cam abutment and said fixed surface means to thus cam said spring arm to an unlatched position,

said unlatched position of said spring arm moving said latch abutment to a position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

said second range of movement moving said lock bolt to the second position and carrying said coin to a position beyond said cam abutment to cause said coin to move to and engage the bottom of said case while being retained within said first coin chute,

a coin return receptacle connected to the bottom of said case and aligned beneath said second coin chute,

and subsequent movement of said lock bolt to said first position returning said first coin chute into alignment with said second coin chute and carrying said coin along the bottom of said case in the opposite direction to move same into said coin return receptacle.

9. A coin operated lock mechanism comprising in combination, a lock case,

a lock bolt movable in said lock case between first and second positions,

means connected to move said lock bolt through first and second consecutive ranges of movement,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a cantilever spring arm fixed on said case,

a latch abutment and an angled cam abutment carried on the outer end of said spring arm and disposed in said first coin chute with said lock bolt being in said first position to hold a coin spaced above the bottom of said first coin chute,

a latch shoulder on said lock bolt,

the mounting of said spring arm establishing said latch abutment in a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

fixed surface means fixed relative to said case within the upper portion of said case,

a coin in said first coin chute engaging said cam abutment by gravity whereby movement of said lock bolt through said first range of movement moves said coin between said angled cam abutment and said fixed surface means to thus cam said spring arm to an unlatched position,

said unlatched position of said spring arm moving said latch abutment to a position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

said second range of movement of said lock bolt to the second position carrying said coin to a position beyond the abutment to cause said coin to move to the bottom of said first coin chute.

10. A coin operated lock mechanism comprising in combination, a lock case,

a lock bolt movable in said lock case between first and second positions,

means connected to move said lock bolt through first and second consecutive ranges of movement,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a cantilever spring arm fixed on said case,

a latch abutment and an angled cam abutment carried on the outer end of said spring arm,

a latch shoulder on said lock bolt,

the mounting of said spring arm establishing said latch abutment in a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

fixed surface means fixed relative to said case near the upper inside wall of said case,

a coin in said first coin chute engaging said cam abutment by gravity above the bottom of said case whereby movement of said lock bolt through said first range of movement moves said coin laterally to have an edge of said coin move against said angled cam abutment and to be urged upwardly by the resilience of said spring arm to engage said fixed surface means to thus cam said spring arm downwardly to an unlatched position,

said unlatched position of said spring arm moving said latch abutment downwardly to a position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

said second range of movement of said lock bolt to the second position carrying said coin laterally beyond the end of said cam abutment to permit said coin to fall by gravity to the bottom of said case while being retained within said first coin chute,

a coin receptacle connected to the bottom of said case and aligned beneath said second coin chute,

and subsequent movement of said lock bolt to said first position returning said first coin chute into alignment with said second coin chute and carrying said coin in the opposite direction to have same fall into said coin receptacle.

11. A coin return, coin and key operated lock mechanism for a door and a door frame, comprising in combination,

a lock case mountable on one of said door and door frame,

a lock bolt movable in said lock case between first and second positions with one being an extended position engaging the other of said door and door frame,

a key cylinder rotatable relative to said case by a key insertable in said cylinder,

crank means connected between said key cylinder and said lock bolt to move said lock bolt through first and second consecutive ranges of movement upon arcuate movement of said key cylinder,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a cantilever spring arm fixed on said case,

a latch abutment and an angled cam abutment carried on the outer end of said spring arm,

a latch shoulder on said lock bolt,

the mounting of said spring arm urging said cam abutment toward a position in said first coin chute and establishing said latch abutment in a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

fixed surface means fixed relative to said case near the upper inside wall of said case,

a coin in said first coin chute engaging said cam abutment by gravity to be disposed above the bottom of said first coin chute whereby arcuate movement of said key cylinder moves said lock bolt through said first range of movement and moves said coin between said angled cam abutment and said fixed surface means to thus cam said spring arm downwardly to an unlatched position,

said unlatched position of said spring arm moving said latch abutment downwardly to a position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

said second range of movement moving said lock bolt to the second position and carrying said coin beyond the end of said cam abutment to permit said coin to fall by gravity to engage the bottom of said case while being retained within said first coin chute,

a coin return receptacle connected to the bottom of said case and aligned beneath said second coin chute, and subsequent movement of said lock bolt to said first position returning said first coin chute into alignment with said second coin chute and carrying said coin in the opposite direction to have same fall into said coin return receptacle.

12. A coin and key operated lock mechanism for a locker having a door and a door frame, comprising in combination,

a lock case mountable on one of said door and door frame,

a lock bolt reciprocable in said lock case between first and second positions with one being an extended position engaging the other of said door and door frame,

a key cylinder rotatable relative to said case by a key insertable in said cylinder,

crank means connected between said key cylinder and said lock bolt to cause reciprocation of said lock bolt through first and second consecutive ranges of movement upon arcuate movement of said key cylinder,

surfaces defining a first coin chute in said lock bolt,

surfaces defining a second coin receiving chute in said case aligned with said first coin chute in said lock bolt upon said lock bolt being in said first position,

a cantilever spring arm fixed on said case,

a latch abutment and an angled cam abutment carried on the outer end of said spring arm and disposed in said first coin chute above the bottom thereof,

a latch shoulder on said lock bolt,

the mounting of said spring arm establishing said latch abutment in a position in the path of movement of said latch shoulder to prevent movement of said lock bolt beyond said first range of movement,

fixed surface means fixed relative to said case near the upper inside wall of said case,

a coin in said first coin chute engaging said cam abutment by gravity and being supported thereby above the bottom of said first coin chute whereby arcuate movement of said key cylinder moves said lock bolt through said first range of movement and moves said coin laterally to have an edge of said coin move against said angled cam abutment and to urge the coin upwardly by the resilience of said spring arm to engage said fixed surface means of said case to thus cam said spring arm downwardly to an unlatched position,

said unlatched position of said spring arm moving said latch abutment downwardly to a position out of the path of said latch shoulder on said lock bolt to thus permit said lock bolt to be moved through said second range of movement,

and said second range of movement moving said lock bolt to the second position and carrying said coin laterally beyond the end of said cam abutment to permit said coin to fall by gravity within said first coin chute.

References Cited by the Examiner UNITED STATES PATENTS 466,313 12/ 1891 Wheeler 1945'8 519,448 5/ 1 894 Dieterich 1445 8 1,237,138 8/1917 Wyckoff 19473 1,600,158 9/1926 Williams 195-58 2,997,151 9/1958 Chandler 19451 FOREIGN PATENTS 661,352 6/1938 Germany.

375,149 6/19 32 Great Britain.

428,161 5/ 1935 Great Britain.

EVON C. 'BLUNK, Primary Examiner.

SAMUEL F. COLEMAN, Examiner.

R. W. WALKER, Assistant Examiner. 

1. A COIN OPERATED LOCK MECHANISM COMPRISING IN COMBINATION, A LOCK CASE, A LOCK BOLT MOVABLE IN SAID LOCK CASE BETWEEN FIRST AND SECOND POSITIONS, MEANS CONNECTED TO MOVE SAID LOCK BOLT THROUGH FIRST AND SECOND CONSECUTIVE RANGES OF MOVEMENT, SURFACE DEFINING A COIN CHUTE IN SAID LOCK BOLT, A LATCH SHOULDER ON SAID LOCK BOLT, A CAM ABUTMENT, MEANS URGING SAID CAM ABUTMENT TOWARD A POSITION IN SAID COIN CHUTE ABOVE THE BOTTOM THEREOF AND IN THE PATH OF MOVEMENT OF SAID LATCH SHOULDER TO PREVENT MOVEMENT OF SAID LOCK BOLT BEYOND SAID FIRST RANGE OF MOVEMENT, SURFACE MEANS CARRIED RELATIVE TO SAID CASE, MOVEMENT OF SAID LOCK THROUGH SAID FIRST RANGE OF MOVEMENT WITH A COIN IN SAID COIN CHUTE SUPPORTED ON SAID ABUTMENT ABOVE THE BOTTOM OF SAID COIN CHUTE MOVING SAID COIN BETWEEN SAID CAM ABUTMENT AND SAID SURFACE MEANS TO THUS CAM SAID CAM ABUTMENT TO AN UNLATCHED POSITION OUT OF THE PATH OF SAID LATCH SHOULDER ON SAID LOCK BOLT TO THUS PERMIT SAID LOCK BOLT TO BE MOVED THROUGH SAID SECOND RANGE OF MOVEMENT AND TO MOVE SAID COIN OUT OF ENGAGEMENT WITH SAID CAM ABUTMENT TO HAVE SAME MOVED TO ANOTHER POSITION STILL WITHIN SAID COIN CHUTE AND MOVED THEREWITH. 